Tablets seem to be all the rage right now, but some of us are still trying to figure out why we'd even want one. Well wonder no more: here are ten worthwhile, clever uses for tablets, whether it's an iPad, Android, or Windows device.

Most of us never get a crash course in how to cook or find our way around the kitchen. We learn from others: friends, parents, cooking shows, or cookbooks. That means it's easy for there to be gaps in our knowledge, like things we really should know, have been doing wrong, or just never had to learn. Let's take a look at some of them.

Proper grammar is important, whether you write for a living or only occasionally. It's especially important if you're looking for a job or trying to impress a new client. In this infographic, GrammarCheck has collected a list of some of the most common grammar errors people make and how to avoid them.

Adobe Photoshop is the market leader when it comes to photo retouching, image editing, or even creating new images from scratch. However, for most people's uses, it may just be too many features to wade through, too much money to spend, or too complicated to use. Thankfully, there are plenty of powerful alternatives that also have tons of features. Here's a look at five of the best.

We can't even pretend we're not enamored with Google here at Lifehacker, but there is life on the other side. While the quality of search results is largely subjective (contrary to what the Bing Challenge would have you believe), there are some things that are definitely better in Microsoft's garden.

Dear Lifehacker,I have a coworker who, for lack of a better word, is really stupid. He asks me how to do the same thing several times per day, regularly makes inane comments, and screws up projects for the whole team. I only care that he's so dumb because he regularly affects my work, but obviously someone thought he was smart enough to hire. What can I do?

We all know that our personal data is very valuable to marketers and other agencies—and that it's collected and sold by data brokers. StopDataMining.me is a master list of opt-out links to stop these data brokers from collecting information about your online and offline activities.

Android: Believe it or not, one of the best ways to find great deals on Ebay is with auctions that have misspelled words. So a "Xbox Connect" instead of an "Xbox Kinect" might just go for a lot lesser since fewer people search for that. Eaby makes it easy to find such items on Android.

Playing the lottery is never a good financial investment, seeing as you have better chances of being on death row and getting a last-minute pardon by the governor than winning. However, if you do play for that glimmer of hope, there are times when it makes more sense to buy a Powerball ticket than others.

Calendars are great to have in your house, but the problem with most of them is that despite cute pictures of kittens or baby turtles, the calendars you can buy at those pop-up kiosks in the mall don't actually get updated with the events in your life. Instructables user Piney wanted a smarter wall calendar, so they built one with a Raspberry Pi and a LCD screen.

You probably know your phone can pinpoint your location for GPS, local search, or the weather. Hopefully, you also know that means your phone keeps track of everywhere you go, all the time. Don't be alarmed—it's the trade you make for the features you get. If it makes you uncomfortable, here's how to opt-out.

SteamOS hasfinally dropped in all its beta glory. If you were one of the lucky 300 people who got some hardware to play with, you're all set. The rest of us, however, have to install it on our own machines. Here's how to do that.